Hornady .416 Caliber Gas Checks are precision-manufactured copper cups designed to protect the base of cast bullets from hot propellant gases during firing ensuring consistent accuracy and extended bullet life.Hornady .416 Caliber Gas Checks1 000 pieces per boxSKU: HORN-7125UPC: 090255271256Precision copper constructionProtects bullet base from gas cuttingEssential for serious reloaders using cast bullets in .416 caliber firearms these gas checks help maintain bullet integrity and improve accuracy for hunting and target shooting applications.